And another update from SoundCloud support:
"With our upcoming Terms of Use update, SoundCloud will not use your content to train generative AI models unless you’ve explicitly given consent via an opt-in mechanism.
That means by default, your content will not be used for AI training, so no action is required on your part to protect your content."
And they linked to a letter from their CEO.
https://press.soundcloud.com/249951-new-campaign-may-14-2025
"SoundCloud has never used artist content to train AI models. Not for music creation. Not for large language models. Not for anything that tries to mimic or replace your work."